|Place|Player|Country|Score|To par|
|---|---|---|---|---|
|1|Dustin Johnson|United States|71-70-66=207|–6|
|2|Graeme McDowell|Northern Ireland|71-68-71=210|–3|
|3|Tiger Woods|United States|74-72-66=212|–1|
|T4|Ernie Els|South Africa|73-68-72=213|E|
|T4|Grégory Havret|France|73-71-69=213|E|
|6|Phil Mickelson|United States|75-66-73=214|+1|
|T7|Alex Čejka|Germany|70-72-74=216|+3|
|T7|Tim Clark|South Africa|72-72-72=216|+3|
|T7|Ryo Ishikawa|Japan|70-71-75=216|+3|
|T10|Martin Kaymer|Germany|74-71-72=217|+4|
|T10|Davis Love III|United States|75-74-68=217|+4|
|T10|Sean O'Hair|United States|76-71-70=217|+4|

Question: how many golfers in the third round are from the united states?
Answer: 5